Refacing bushing tool



Dec-

I W; JARVIO REFACING BUSHING TOOL Filed May 5, 1924 Patented Dec. 22, 1925.

UNITED STATES WILLIAM JARVIO, OF QUINCY, MASSACHUSETTS.

anrnornerY BUSHING Toon.

Application filed May 5,

To all y'io/10mi t may concern Be it known that I, lViLLrAM JAnvro, a citizen of the United States, residing at Quincy, in the county of Norfolk and State of Massachusetts, have invented certain new and Auseful Improvements in Refacing Bushing Tools, of which the following is a specilication.

This invention relates to a tool for refacing bushings and the like and has for its prime object to provide a device of this na,- t-ure possessing a very simple and efficient construction, one which is reliable in operation, inexpensive to manufacture, and well adapted to the purpose for which it is designed.

Another important object of the invention is to provide a device of this nature which is easily assembled and which may be readily j engaged or associated with the object upon which it is to operate.

With the above and numerous other objects in view as will be hereinafter more fully described and claimed, the invention resides in certain novel features of construction, and in the combination and arrangement of parts will appear as the description progresses.

ln the. drawing: l

Figure 1 is an elevation of the tool embodying my invention showing a steering knuckle of an automobile in section,

Figure 2 is a fragmentary elevation of the upper part of the tool, portions being shown in section and substantially on the line 2-2 of Figure 1,

Fgure 3 is an elevation of the lower portion of the tool, and

Figure 4 is a perspective view of the blade. Referring to the drawing in detail it `will be seen that 1 designates the elongated stem which terminates at its upper end in a threaded portion 2 which is bifurcated by a slot S extending from its end toward its intermediate portion. A blade 4 is in the form of a U-shaped plate having its terminals 5 oppositely beveled so as to form cutting edges 6. This blade plate 4 is/positioned in the slot 3 so as to extend transversely of the stem. A washer 7 is placed over the threaded portion 2 of the stein to rest on the blade i. and a head or nut 8 provided with a threaded bore 9 is then screwed over the threaded portion 2 of the. stem 1 so as to secure the blade in place. The rod 10 extends through this head 9,1 aat 8 for turning the i924. `Serial No. 711,268,

stem and also for screwing the head or nut on the threaded portion of the stem. In usingl the device for refacing the bushings 12 of a steering knuckle 13 the stem is passed there-through as is shown to advantage in Figure l so that the cutting edges 6 of the blade 4 rests on one of the bushings 12. A sleeve 14 is placed on tlie. end of the stem 1 opposite to the threaded portion 2 so as to engage the lower bushing 12 with its upper edge. The lower edge of this sleeve is in the form of two cams 15. A pin 16 is passed through the stem 1. A rod 17 forming a handle projects from the sleeve 14 in order that it may be rotated so that the cams 15 engaging the pin 16 will force the blade 4 into engagement with the upper bushing 12. Now by turning the head 8 the blade will eliiciently reface the bushing 12 shown at the top of the. knuckle 13 and may be properly adiusted byfurther turning of sleeve 14. It is evident that in order to reface the bottom bushing 12 that the tool should be reversed.

This tool was designed particularly for use in refacing the bushing ,of steering knuckles and the like but of course is capable of being elliciently used in other ways, the present example being sent forth merely to illustrate the utility of the device. It is also evident that numerous changes in the details of construction,-and in the` combination and arrangement of parts may be resorted towithout departing from the spirit or scope of the invention as hereinafter claimed or sacrificing anv of its advantages.

I claim as new is:

1. A tool of the class described including a stein, a blade rigidly mounted on one end of the stem, a sleeve rotatably and slidably mounted on the other end of the stein and having its outer end in the form of a cam, a removable pin on the stem engaged with the cam of the sleeve, and ,means for facilitating manual rotation of the sleeve on the stem for adjusting the blade into engagement with the object to be refaced.

2. A tool of the class described including au elongated stem having a slotted and threaded end, a blade in the slotted and threaded end` a nut on the slotted and threaded end to hold the blade in place, a rod extending through the nut for screwing the 'same on the stern and also turllngthe stem Having thus described my invention, what ifi-5 and the blade, and ineans on the stem for holding the blade in engagement With an object.

3. A tool of the class described including an elongated stein having a threaded and slotted end, a blade of U-shaped structure having its ends beveled to `form cutting edges and situated in the slotted end of the stem, a nut threaded on the slotted end of the stern holding the blade in place, a rod extended 10 through the nut for operation thereof and also l'orturning the stem, a sleeve on the stein a distance from the blade and having its end situated farther from the blade in the form of a Cain, and a ineinber on the stein t0 be 15 engaged by the Cain.

In testimony whereof I allix my signature.

WILLIAM JARVIO. 

